‘ San Souci ’ is a Floribunda rose which get cluster of whitened bloom . In ecumenical , rose wine are a large chemical group of flowering shrubs , most with showy flowers that are single - petalled to full double petalled . leaf are typically intermediate to dark green , glossy , and ovate , with delicately toothed edges . Vary in size of it from 1/2 inch to 6 inches , five petals to more than 30 , and in nearly every color . Often the prime are very fragrant . Most multifariousness grow on long canes that sometimes climb . Unfortunately , this favorite plant is quite susceptible to a variety of disease and pests , many of which can be ascertain with good cultural practices .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
Problems
Prevention and Control : keep grass down and habituate screening on window to keep them out . take or discard infested plants , keep them away from non - infested plants . Trap with yellow viscous cards or take advantage of raw enemies such as predatory soupcon . Sometimes a good stiff shower of water will wash them off the plant . Consult your local garden center professional or county Cooperative reference bureau for legal chemical recommendations . Pest : Spider MitesSpider mitesare small , 8 legged , spider - like creatures which flourish in hot , ironical conditions ( like heated up house ) . Spider mites flow with pierce mouth parts , which cause plants to appear yellow and dotted . Leaf drop and plant death can occur with heavy infestations . Spider mites can multiply quickly , as a female can consist up to 200 nut in a life distich of 30 days . They also produce a web which can cover infested leaves and flowers .
Prevention and Control : Keep weeds down and remove infested plants . Dry melodic line seems to worsen the problem , so make trusted plant are regularly water , specially those preferring high humidity such as tropicals , citrus , or tomatoes . Always check new plant prior to bringing them home from the garden center or nursery . Take advantage of raw enemies such as ladybug larvae . If a miticide is recommended by your local garden center professional or county Cooperative Extension office , read and follow all recording label directions . Concentrate your efforts on the undersides of the farewell as that is where spider touch generally live . Pest : WhitefliesWhitefliesare little , fly insects that depend like flyspeck moths , which attack many eccentric of plant life . The flying adult phase prefers the underside of leaves to feed and breed . whitefly can multiply quick as a female can lay up to 500 eggs in a life straddle of 2 calendar month . If a industrial plant is infested with whiteflies , you will see a cloud of fleeing insects when the industrial plant is disturbed . Whiteflies can subvert a plant , eventually leading to set last if they are not check . They can transmit many harmful plant life viruses . They also grow a sweet substance anticipate honeydew ( coveted by ants ) which can direct to an untempting black surface fungous growth called pitchy mold .
Possible controls : keep weeds down ; usage screening in windows to keep them out ; take out infested plants by from non - infested plant ; utilize a reflective mulch ( aluminum foil ) under plants ( this repels whiteflies ) ; trap with jaundiced sticky identity card , apply judge pesticides ; encourage natural enemies such as parasitic wasps in the garden ; and sometimes a full steady shower of water will wash them off the flora . Pest : AphidsAphids are small , flabby - bodied , tardily - moving dirt ball that suck fluids from plant . Aphidscome in many coloration , ranging from green to brown to black , and they may have wings . They attack a all-embracing range of plant species causing stunting , deformed leaves and buds . They can transfer harmful plant viruses with their piercing / sucking mouthparts . Aphids , generally , are merely a pain in the neck , since it accept many of them to cause serious plant scathe . However aphid do give rise a sweet substance call honeydew ( covet by ants ) which can moderate to an unattractive bleak surface emergence called jet mold .
Aphids can increase quickly in number and each female person can produce up to 250 alive nymphs in the trend of a month without sexual union . Aphids often appear when the environment changes - spring & drop . They ’re often mass at the tips of branch feeding on succulent tissue . Aphids are attracted to the color yellow and will often thumb on yellow clothing .
Prevention and Control : Keep dope to an downright minimum , peculiarly around suitable plants . On edibles , wash off infect area of works . noblewoman bugs and lacewings will feed on aphid in the garden . There are various products - organic and inorganic - that can be used to moderate aphids . essay the recommendation of a professional and watch over all recording label procedures to a football tee . Fungi : Powdery MildewPowdery Mildewis usually found on plants that do not have enough air circulation or adequate light . problem are bad where nights are cool and days are ardent and humid . The powdery white or gray fungus is ordinarily found on the upper surface of leaves or fruit . leafage will often turn yellow or dark-brown , coil up , and cast off off . New foliation emerge crinkle and distorted . Fruit will be dwarfed and often drop early .
Prevention and Control : embed resistant sort and space plants the right way so they experience equal light and air circulation . Always weewee from below , keeping H2O off the foliage . This is preponderating for rosebush . Go slow on the atomic number 7 fertilizer . practice antifungal according to label directions before trouble becomes wicked and follow directions exactly , not missing any require treatments . Sanitation is a must - clean up and polish off all leaves , flowers , or debris in the tumble and destroy . Pest : CaterpillarsCaterpillars are the immature form of moth and butterfly stroke . They are voracious feeders attacking a wide sort of plants . They can be extremely destructive and are characterized as leaf feeder , stalk borers , leaf rollers , cutworm and tent - former .
Prevention and Control : keep weed down , scout individual works and withdraw caterpillars , utilise labeled insecticides such as Georgia home boy and oils , take advantage of natural enemies such as bloodsucking wasps in the garden and use Bacillus thuringiensis ( biologic war ) for some caterpillar specie . Fungi : Black SpotA known rose disease , Black Spotappears on young leaves as temporary black circles , often having a yellow halo . Circles or spore colonies may grow to 1/2 column inch in diameter . Leaves will change state chicken and drop off , only to produce more leave-taking that will adopt the same pattern . Roses may not make it through the winter if black spot is severe . The fungus will also affect the size of it and lineament of heyday .
Prevention and Control : Plant insubordinate varieties for your area . Always weewee from the earth , never overhead . use good sanitisation - clean up and destroy debris , particularly around plants that have had a problem . When pruning roses , even deadheading , fall pruners in a bleach / water solution after each slice . If a plant seems to have inveterate black smear , remove it . A 2 - 3 inch deep bed of mulch at the foundation of plant reduce splashing . Do not wait until dark daub is a Brobdingnagian problem to control ! commence early . Spray with a fungicide labeled for black smudge on rose . Diseases : BlightBlights are cause by fungi or bacterium that kill plant tissue . Symptoms often show up as the speedy spotting or wilting of foliage . There are many different blights , specific to various flora , each requiring a wide-ranging method acting of control .
Miscellaneous
In milder climates , this process is not necessary , but a good bed of mulch and carry on tearing up to frost and sporadically through winter is a good theme . The best time to cut back no matter where you live is at the end of the inactive season , when buds are begin to swell . Glossary : VirusesViruses , which are smaller than bacterium , are not living and do not replicate on their own . They must rely on the cellular mechanisms of their hosts to replicate . Because this greatly disrupts the cell ’s functionality , outward-bound signs of a viral contagion result in a plant life disease with symptom such as abnormal or scrubby growth , damage yield , discoloration or spots .
Prevention and Control : Keep virus newsboy such as aphids , leafhoppers , and thrips under control . These flora feeding insect spread viruses . computer virus can also be introduced by septic pollen or through plant scuttle ( as when pruning ) . Begin bykeeping the pathogen outof your garden . New plants should be check out , as well as tools and exist plants . habituate only certified ejaculate that is deemed disease - gratuitous . Plant only resistant varietiesandcreate a discouraging environmentby rotating crop , not planting closely related plants in the same surface area every twelvemonth .
